Wrench.



HMI/W.

' PATENTED AUG. 1.4,- 1906.

WRENCH. APPLIUATION PILED'JAN. s1, 190e.

Il. .I- I

- Mill/11111 0. 4 Am 8 2 oo nu N UNITED STATES PATENT `OEE1GE.

WRENCH.

Specification of Letters Patent.

Patented Aug. 14, 1906.

Application iled January 31,1906.. Serial No. 298,813.

T0 all whom/ it may concern.-

Be itA known that l, JOHN F.; SULLIVAN, a citizen of the United Statesof America, and a resident of the city of Seattle, in the county of Kingand State of Washington, have invented certain new and usefullmprovements in Wrenches, of which the following is a specification.

The primary obj ect of my invention is the provision of a simple andefficient wrench especially adapted for turning nuts or the like whichare located in recesses or corners.

With the above and other objects to be referred to in the followingdescription in view my invention residesI in the construction,combination, and arrangement of parts, as set forth in thisspecification and defined in the appended claim.

With reference to the drawings filed herewith and in which likereference-numerals designate corresponding parts throughout, Figure 1 isa view in perspective, showing my improved wrench in partial brokensection and applied to a nut. Fig. 2 is a plan view of the wrench inpartial section and shown with a portion of the lever broken away. Fig.3 is a vertical section taken on line 3 3 of Fig. 2, and Fig. 4 is adetail.

ln carrying out my invention I provide a suitable lever 1 and a head, as2, the former having an annular-like portion 3, which embraces saidhead, being fitted snugly but rotatably in a groove 4, convenientlyformed in the periphery thereof.

Between the lever and head is a releasable driving connectionconveniently consisting of suitable ratchet-teeth 5, formed in thebottom wall of groove 4, and a coacting pawl, as 6, mounted on saidlever and consisting of a bar beveled on one side at one extremity.

The pawl 6 is slidably and rotatably mounted in a suitable recessprovided in lever 1 and is yieldingly held to engage with the teeth' onhead 2 by a suitable spring.

Related to pawl 6 is a reversing member, as 7, by means of which thepawl may be rotatably adjusted to reverse the direction that head 2 willbe rotated when lever 1 is reciprocated. This member is formed with anaperture which slidably receives the stem portion of the pawl andcarries a feather 7 (see Fig. 4,) which engages in a feather-way formedin said stem.

Reference-numeral 8 indicates a springpressed catch mounted on lever 1at one side of member 7 and adapted to engage in one or the other of thenotches 9, formed in said member at diametrically opposite points, andthereby secure pawl 6 in either of its adjusted positions.

Mounted on the head 2 are jaws, as 10 10, which are disposed at oppositesides of the axis of and project from one side of the head. These jawsare each provided with a stem 11, which fits snugly but slidably betweenthe side walls of an elongated aperture 2, formed in said head, andsuitable shoulders 12 and 14 are provided on the stem, at each side edgethereof, which slidably embrace'the head.

To adjust the jaws 10 and secure them in adjusted positions, l providescrews 15 and 16, which are each formed with right-hand screw-threads onone end portion and lefthand screw-threads on the other end portion.

The screw'15 is preferably disposed adj acent the upper side face ofhead 2, with its screw-threaded portions engaging respectivescrew-threaded bushings 15', secured in opposite apertures This screwhas its extremities reduced in diameter and rotatably engaged inrespective journals 17, provided on said head, while suitable collarsare secured to said extremities to prevent longitudinal movement of thescrew.

The screw 16 is disposed adjacent the lower side surface of head 2, withits screwthread portions engaging respective screwthreaded bushings 16,secured in opposite apertures formed in the base end portions of 'aws10. j

The screws 15 and 16 are preferably connected for simultaneousoperation, and for this purpose l provide sprocket-wheels 18 18 whichare secured each to its respective screw substantially midway thelengths thereof, and a link belt 19, which passes about said wheels, soas to connect the same for simultaneous operation.

Extending along the opposing faces of the stems 11 are recesses 11',which are of suitable width to receive wheels 18, thereby permittingjaws 10 to be brought into close proximity to each other to engage nutsof small diameter.

When desired to employ the wrench for turning a nut, the operatorapplies one of his thumbs to the ends of the teeth of the upper lsprocket 18 to rotate the screws 15 and 16 in the proper direction toadjust the jaws 10. He then adjusts pawl 6 for proper engagement withthe ratchet-teeth 5 to cause head 2 formed in the stems 11.v

IOO

freely the sprocket- ITO to move with lever 1 when it is moved in thescrew-threads provided on the respective proper direction to turn thenut as desired.

stems, sprocket-wheels secured to said screws Ig Having thus describedmy invention, what between said stems, and a chain passing over I claimas new, and desire to secure by Letsaid sprocket-Wheels, the opposingfaces of 5 ters Patent ofthe United States of America7 said stems beingrecessed to receive said is sprocket-wheels and chain, as specified.

In a Wrench, a head having an elongated i Signed at Seattle, Washington,this 22d 2c aperture, a pair of jaws projecting from one4 day ofJanuary, 1906. side of said head, stems fixed to said jaws and 1oprojecting into said aperture of the head, JOHN F' SULLIVAN' screwsspaced apart and each provided on its Witnesses: i opposite end portionswith screw-threads of FRANK E. ADAMS,

opposite hands engaged with corresponding ARLITA ADAMS.

